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| author | Richard Biener <rguenther@suse.de> | 2013-01-31 09:00:54 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-01-31 09:00:54 +0000 |
| commit | 6e61611091c9446c62eb88c2257d5f43ad396fc2 (patch) | |
| tree | d6aeb452f86b1642240ab74d863ba99b6bd83792 /gcc/tree-ssa-loop-niter.c | |
| parent | 636f59cfb37b743bf162e42d79e10385f44e0f9b (diff) | |
| download | gcc-6e61611091c9446c62eb88c2257d5f43ad396fc2.zip gcc-6e61611091c9446c62eb88c2257d5f43ad396fc2.tar.gz gcc-6e61611091c9446c62eb88c2257d5f43ad396fc2.tar.bz2 | |
re PR middle-end/53073 (464.h264ref in SPEC CPU 2006 miscompiled)
2013-01-31 Richard Biener <rguenther@suse.de>
PR middle-end/53073
* common.opt (faggressive-loop-optimizations): New flag,
enabled by default.
* doc/invoke.texi (faggressive-loop-optimizations): Document.
* tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop): Guard
infer_loop_bounds_from_undefined by it.
From-SVN: r195610
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
| -rw-r--r-- | gcc/tree-ssa-loop-niter.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index 2d93462..7ba7416 100644 --- a/gcc/tree-ssa-loop-niter.c +++ b/gcc/tree-ssa-loop-niter.c @@ -3336,7 +3336,8 @@ estimate_numbers_of_iterations_loop (struct loop *loop) } exits.release (); - infer_loop_bounds_from_undefined (loop); + if (flag_aggressive_loop_optimizations) + infer_loop_bounds_from_undefined (loop); discover_iteration_bound_by_body_walk (loop); |